Today's Smalltalk 4 You goes through a simple example - reading and writing a file in binary mode in VA Smalltalk. If you have trouble viewing it here in the browser, you can also navigate directly to YouTube. To watch now, click on the image below:

Even though we are using the abstract class FileStream, VA picks up the correct concrete subclass when we use the #write: method. Next, we'll want to read the file in binary mode (again, using #isBytes:)